68 lines
1.8 KiB
C
68 lines
1.8 KiB
C
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#include <sys/types.h>
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#define USE_LIBC_INITFINI 0
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#if USE_LIBC_INITFINI
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/*
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* The _init() and _fini() will be called respectively when use __libc_init_array()
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* and __libc_fnit_array() in libc.a to perform constructor and destructor handling.
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* The dummy versions of these functions should be provided.
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*/
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#if 1
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void _init(void)
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{
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}
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void _fini(void)
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{
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}
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#endif
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#else
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/* These magic symbols are provided by the linker. */
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extern void (*__preinit_array_start []) (void) __attribute__((weak));
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extern void (*__preinit_array_end []) (void) __attribute__((weak));
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extern void (*__init_array_start []) (void) __attribute__((weak));
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extern void (*__init_array_end []) (void) __attribute__((weak));
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/*
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* The __libc_init_array()/__libc_fnit_array() function is used to do global
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* constructor/destructor and can NOT be compilied to generate the code coverage
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* data. We have the function attribute to be 'no_profile_instrument_function'
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* to prevent been instrumented for coverage analysis when GCOV=1 is applied.
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*/
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/* Iterate over all the init routines. */
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//void __libc_init_array (void) __attribute__((no_profile_instrument_function));
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void __libc_init_array (void)
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{
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size_t count;
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size_t i;
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count = __preinit_array_end - __preinit_array_start;
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for (i = 0; i < count; i++)
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__preinit_array_start[i] ();
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count = __init_array_end - __init_array_start;
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for (i = 0; i < count; i++)
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__init_array_start[i] ();
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}
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extern void (*__fini_array_start []) (void) __attribute__((weak));
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extern void (*__fini_array_end []) (void) __attribute__((weak));
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/* Run all the cleanup routines. */
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void __libc_fini_array (void) __attribute__((no_profile_instrument_function));
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void __libc_fini_array (void)
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{
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size_t count;
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size_t i;
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count = __fini_array_end - __fini_array_start;
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for (i = count; i > 0; i--)
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__fini_array_start[i-1] ();
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}
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#endif
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